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    • 2. 发明授权
    • Valve operating system in internal combustion engine
    • 内燃机阀门操作系统
    • US5979376A
    • 1999-11-09
    • US895644
    • 1997-07-17
    • Harumi HatanoToshihiro YamakiChihaya SugimotoShoichi OgawaToshio Yokoyama
    • Harumi HatanoToshihiro YamakiChihaya SugimotoShoichi OgawaToshio Yokoyama
    • F01L9/04F16K31/06
    • F01L9/04
    • A valve operating system in an internal combustion engine, that can be readily assembled and installed on the engine, including a casing coupled to an upper surface of a cylinder head, an armature, a pair of electromagnets for exerting electromagnetic forces on the armature in directions of opening and closing of an engine valve, and a pair of resilient means for biasing the engine valve in the opening and closing directions, respectively, and for retaining the armature at a predetermined neutral position by cooperation with each other during deenergization of both the electromagnets. The resilient means for closing the engine valve is mounted between a retainer fixed to the valve stem and a fixed position on the cylinder head, and the electromagnets are fixed within the casing which is constructed so that an upper portion of the stem can be inserted into the casing. Accommodated within the casing are the armature separatably coaxially connected at an upper end of the stem, and the resilient means for opening the engine valve and also exhibiting a resilient force for urging the armature against the first electromagnet to support the armature, when the armature is not connected to the stem.
    • 一种内燃机中的阀操作系统,其可以容易地组装和安装在发动机上,包括联接到气缸盖的上表面的壳体,电枢,用于在电枢上施加电磁力的一对电磁体 发动机气门的打开和关闭的一对弹性装置,以及用于分别在打开和关闭方向上偏置发动机气门的一对弹性装置,并且用于在两个电磁体的断电期间通过彼此配合将电枢保持在预定的中立位置 。 用于关闭发动机气门的弹性装置安装在固定到阀杆的保持架和气缸盖上的固定位置之间,并且电磁体被固定在壳体内,该壳体被构造为使杆的上部能够插入 套管。 壳体内部容纳有衔铁可分离地同轴连接在杆的上端,以及用于打开发动机气门的弹性装置,并且还具有弹性力,用于当衔铁为衔铁时将衔铁推向第一电磁体以支撑电枢 没有连接到杆。
    • 3. 发明授权
    • Control apparatus for electromagnetic actuator
    • 电磁执行器控制装置
    • US06201681B1
    • 2001-03-13
    • US09348687
    • 1999-07-07
    • Minoru ToriiToshihiro YamakiMinoru Nakamura
    • Minoru ToriiToshihiro YamakiMinoru Nakamura
    • H01H4700
    • F01L9/04
    • A control apparatus for an electromagnetic actuator for driving a mechanical element by using an electromagnetic coil. The control apparatus includes a circulation circuit for circulating current to be supplied to the electromagnetic coil, a capacitor provided in the circulation circuit and to be charged by the current flowing through the circulation circuit, and a unit for, when the current supplied to the electromagnetic coil is stopped, forming a discharge path for discharging the capacitor and flowing current to an opposite direction through the electromagnetic coil. The current supplied to the electromagnetic coil is charged in the capacitor, then when the current having been supplied to the electromagnetic coil is stopped, the electric charge thus accumulated in the capacitor is discharged thereby to flow current to the opposite direction through the electromagnetic coil. Thus, the current caused by the induced electromotive force generated in the electromagnetic coil due to the stop of the supplied current can be canceled, so that the electromagnetic coil can be quickly demagnetized.
    • 一种用于通过使用电磁线圈驱动机械元件的电磁致动器的控制装置。 控制装置包括循环电路,用于循环供给电磁线圈的电流,设置在循环回路中并由流过循环回路的电流充电的电容器,以及当提供给电磁线圈的电流时, 线圈停止,形成用于使电容器放电并且将电流流过电磁线圈的相反方向的放电路径。 提供给电磁线圈的电流被充电到电容器中,然后当已经提供给电磁线圈的电流停止时,这样累积在电容器中的电荷被放电,从而通过电磁线圈将电流流向相反的方向。 因此,可以抵消由于供给电流的停止而在电磁线圈中产生的感应电动势引起的电流,使得电磁线圈能够快速退磁。
    • 4. 发明授权
    • Controller for controlling an electromagnetic actuator
    • 用于控制电磁执行器的控制器
    • US06925975B2
    • 2005-08-09
    • US10068031
    • 2002-02-06
    • Hidetaka OzawaKenji AbeYoshitomo KounoMinoru NakamuraToshihiro YamakiYasuo Shimizu
    • Hidetaka OzawaKenji AbeYoshitomo KounoMinoru NakamuraToshihiro YamakiYasuo Shimizu
    • F01L9/04F02D13/02F02D41/20F16K31/06H01F7/16H01F7/18
    • F01L9/04F01L2009/0436F02D13/0207F02D13/0253F02D41/20F02D2041/001Y02T10/18
    • A controller for an electromagnetic actuator comprises a pair of springs acting on opposite directions, and an armature connected to the springs. The armature is held in a neutral position given by the springs when the armature is not activated. The actuator also comprises a pair of electromagnets for driving the armature between two end positions. In response to a release of the armature held in one of the end positions, the controller applies brake to the armature according to a load condition of the armature. In high-load conditions, the valve can surely be opened without additional electric power. In low-load conditions, the armature is prevented from colliding with a yoke of the electromagnet. The application of brake includes over-excitation operation, flywheel operation and suspension of power supply. In the over-excitation operation, voltage is applied to the electromagnet corresponding to one of the end positions from which the armature is released for a first period. The first period may be determined according to a load condition of the armature. After the first period elapses, flywheel current is supplied to the electromagnet for a second period. After the second period elapses, power supply to the electromagnet is suspended. Appropriate combination of over-excitation operation, flywheel operation and suspension of power supply allows the braking force to be adjusted according to a load condition of the armature.
    • 用于电磁致动器的控制器包括作用在相反方向上的一对弹簧和连接到弹簧的电枢。 当电枢未激活时,电枢被保持在弹簧给定的中立位置。 致动器还包括用于在两个端部位置之间驱动电枢的一对电磁体。 响应于保持在一个端部位置的电枢的释放,控制器根据电枢的负载条件向电枢施加制动。 在高负载条件下,阀门可以无需额外的电力就能打开。 在低负载条件下,防止电枢与电磁铁的轭碰撞。 制动器的应用包括过励磁运行,飞轮运行和电源暂停。 在过激励操作中,电压被施加到对应于电枢被释放第一周期的端部位置之一的电磁体。 可以根据电枢的负载条件来确定第一周期。 经过第一个时间段后,飞轮电流供应给电磁铁第二个周期。 第二个时期过后,电磁铁供电暂停。 过励磁运行,飞轮运行和电源暂停的适当组合允许根据电枢的负载条件来调节制动力。
    • 5. 发明授权
    • Control system for compression ignition internal combustion engine
    • 压燃式内燃机控制系统
    • US06848435B2
    • 2005-02-01
    • US10868033
    • 2004-06-16
    • Toru KitamuraYoshimasa KanekoToshihiro Yamaki
    • Toru KitamuraYoshimasa KanekoToshihiro Yamaki
    • F02B11/00F02D13/02F02D21/08F02D41/02F02D45/00F02M25/07F02B47/08
    • F02M26/47F02M26/01
    • A control system for a compression ignition internal combustion engine, which is capable of properly estimating the temperature of combustion gases, and thereby accurately controlling the temperature of working medium according to the estimated temperature of the combustion gases, to thereby prevent knocking and misfire from occurring. A compression ignition internal combustion engine causes combustion of an air-fuel mixture by self-ignition in a combustion chamber, and includes an EGR device that causes part of combustion gases generated by the combustion to exist as EGR gases in the combustion chamber. The control system estimates the amount of EGR gases existing in the combustion chamber, estimates the temperature of combustion gases generated by combustion of working medium including the air-fuel mixture and the EGR gases, according to the estimated amount of the EGR gases, and determines the amount of the EGR gases which should be caused to exist in the combustion chamber, according to the estimated temperature of the combustion gases.
    • 一种用于压缩点火内燃机的控制系统,其能够适当地估计燃烧气体的温度,从而根据估计的燃烧气体温度精确地控制工作介质的温度,从而防止发生爆震和失火 。 压缩点火式内燃机在燃烧室中通过自点火引起空燃混合物的燃烧,并且包括使燃烧产生的燃烧气体的一部分作为EGR气体存在于燃烧室中的EGR装置。 控制系统估计存在于燃烧室中的EGR气体的量,根据EGR气体的估计量来估计包括空气 - 燃料混合物和EGR气体在内的工作介质的燃烧产生的燃烧气体的温度,并且确定 根据燃烧气体的估计温度,应该在燃烧室中存在的EGR气体的量。
    • 8. 发明授权
    • Electromagnetic actuator controller
    • 电磁执行器控制器
    • US06690563B2
    • 2004-02-10
    • US10052724
    • 2002-01-18
    • Hidetaka OzawaKenji AbeYoshitomo KounoMinoru NakamuraToshihiro Yamaki
    • Hidetaka OzawaKenji AbeYoshitomo KounoMinoru NakamuraToshihiro Yamaki
    • H01H900
    • F01L9/04H01F7/1844
    • A controller for an electromagnetic actuator comprises a pair of spring acting in opposite directions, and an armature coupled to a mechanical element. The armature is connected to the springs and held in a neutral position given by the springs when the actuator is not activated. The actuator includes a pair of electromagnets for driving the armature between two end positions. The controller includes voltage application means for applying voltage to an electromagnet providing one end position for a first predetermined period so as to attract the armature to the end position. The controller also includes a peak current detector for detecting the peak of current flowing through the electromagnet in the first predetermined period. In accordance with the peak value, a decision means decides the application period of voltage that is to be applied to the electromagnet after the first application period has elapsed. Thus, the armature can make a stable seating at a controlled speed without generating substantial noise.
    • 用于电磁致动器的控制器包括沿相反方向作用的一对弹簧和联接到机械元件的电枢。 当致动器未被激活时,电枢连接到弹簧并保持在弹簧给定的中立位置。 致动器包括用于在两个端部位置之间驱动电枢的一对电磁体。 控制器包括用于向提供一个端部位置的电磁体施加电压达第一预定周期的电压施加装置,以便将电枢吸引到终端位置。 控制器还包括峰值电流检测器,用于检测在第一预定周期内流过电磁体的电流的峰值。 根据峰值,决定装置决定在第一施加期间经过后施加于电磁铁的电压的施加期间。 因此,电枢可以以受控的速度进行稳定的就座,而不会产生实质的噪音。